The allegations stem from an “upfront deal” Trump’s campaign signed with Twitter back in August 2016.

Coby wrote that the deal “is a common setup where we [committed] to spending a certain amount on advertising and in exchange receives discounts, perks, and custom solutions.”

The deal placed a $5 million minimum spending commitment on the Trump campaign but provided “discounts on promoted trends” and “value adds,” including the “custom hashtag emojis” Dorsey and Twitter COO Adam Bain would eventually block from running.